linux-kernel - Re: [PATCH v2 2/3] usb: chipidea: imx: support disabling runtime-pm

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Date:   Tue, 18 Jul 2023 10:14:41 +0200
From:   Francesco Dolcini <francesco@...cini.it>
To:     Luca Ceresoli <luca.ceresoli@...tlin.com>
Cc:     Francesco Dolcini <francesco@...cini.it>, Jun Li <jun.li@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "festevam@...il.com" <festevam@...il.com>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        dl-linux-imx <linux-imx@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Francesco Dolcini <francesco.dolcini@...adex.com>,
        Xu Yang <xu.yang_2@....com>
Subject: Re: [PATCH v2 2/3] usb: chipidea: imx: support disabling runtime-pm

On Mon, Jul 17, 2023 at 06:45:37PM +0200, Luca Ceresoli wrote:
> On Thu, 6 Jul 2023 12:23:43 +0200
> Francesco Dolcini <francesco@...cini.it> wrote:
> > On Tue, May 30, 2023 at 11:22:51AM +0000, Jun Li wrote:
> > > Yes, your understanding is correct, talked with Xu(in CC), he will take this
> > > soon.  
> > 
> > A series was posted
> > https://lore.kernel.org/all/20230627110353.1879477-1-xu.yang_2@nxp.com/,
> > I had no time to try or look at it yet.
> 
> Thanks for keeping me up to date on this topic, which is still totally
> relevant to me.
> 
> I looked at the series, but it does not seem to be addressing the
> problem with USB host not detecting new devices when VBUS is not
> directly connected, e.g. in the Colibri imx6ull SoM.

I recall having tried something similar, it could handle also the
colibri imx6ull use case. Were you able to try it? These days I am busy
with other tasks and I was not able to find the time (yet).

Francesco